hey..this info may help others who share the same difficulties as i did :D at first , following the tutorial i had no luck... the phone wasn't able to turn on after trying to apply the vkp patch . I had to flash main,fs and custom again with xss+ to get it working but the lock still existed... then i tryed flashing with setool2 only the main+ vkp patch selected as "misc" with the "bypass db2020...." feature activated and... IT WORKED :D now i can use any sim i want :D TY dude for this nice little software :D